Super Mario Galaxy

A 3D platformer where Mario hops between planetoids with their own gravity fields. You run upside-down on spherical worlds, leap between floating chunks of rock, and navigate surfaces that curve in unexpected directions. Each galaxy introduces different environmental hazards—lava planets, ice worlds, underwater zones—plus power-ups like the Bee Suit for flight or the Boo Mushroom for phasing through walls. Bowser's kidnapped Peach again, this time hauling her castle into space, so you're chasing him across star systems. Levels are compact, focused challenges rather than sprawling sandboxes. Gravity shifts constantly: what's a floor becomes a ceiling mid-jump. Collect Power Stars to unlock new galaxies. If you've never played a Mario game built around spherical level design, this is the blueprint.